Hi,

1905 house with 30's kitchen extension.
How best to put a new 'plastic ie. Amtico tiles on it?

I put Amtico tiles down on the quarry tiles (with a levelling compound)
25 years ago with a bituminous adhesive which seems to have held.
More laid 9 years ago with a contact adhesive have not and some have
blistered.
So quarry tiles by themselves do not seem to provide
a damp course, what is under the quarry tiles is anyone's guess.

Regards

Colin

On 25/08/14 12:06, cojack wrote:
Hi,

1905 house with 30's kitchen extension.
How best to put a new 'plastic ie. Amtico tiles on it?

I put Amtico tiles down on the quarry tiles (with a levelling compound)
25 years ago with a bituminous adhesive which seems to have held.
More laid 9 years ago with a contact adhesive have not and some have
blistered.
So quarry tiles by themselves do not seem to provide
a damp course, what is under the quarry tiles is anyone's guess.

Regards

Colin

One option might be to paint over an epoxy DPM, eg:

http://www.f-ball.co.uk/product_deta...F75&catID=damp

You need to read the instructions *well* and do exactly what they say.

However, you will have to get the bitumen off completely and nothing,
apart from more bitumen ever sticks to the damn stuff.


Another option is to lay single sheet vinyl over it - the need for
continuous adhesion is removed - it can almost be laid loose if you
siliconed the edges to the skirting.

if you have damp, the underside will go mouldy over time but that should
not be much of a problem.

"cojack" wrote in message
news
Hi,

1905 house with 30's kitchen extension.
How best to put a new 'plastic ie. Amtico tiles on it?

I put Amtico tiles down on the quarry tiles (with a levelling compound)
25 years ago with a bituminous adhesive which seems to have held.
More laid 9 years ago with a contact adhesive have not and some have
blistered.
So quarry tiles by themselves do not seem to provide
a damp course, what is under the quarry tiles is anyone's guess.

Regards

Colin

If the quarry tiles are original, they will have been considered to BE the
damp course back then.
There may be brick or concrete beneath.
Blistering is caused by water vapour coming up the joints between the quarry
tiles.
Traditionally the other possibility was wood blocks (permeable)
Blistering happens when the floor finish is completely impermeable, ie won't
let moisture underneath escape.
It's worse if the room is warm.
You could put down ceramic floor tiles, Very important you use a
cementatious tile adhesive when damp is present.
ie, the powder ones.
The other adhesive, ie the jollop in a big tub, relies on the moisture being
sucked out by a dry surface, hence never sets if the floor is even slightly
damp.
Contact adhesives don't stick well to damp surfaces.
Hot bitumen drives the damp out for a while until it sets/sticks.
That too was used as a DPC years ago.
The only way you can tell if it's damp is with a dampmeter. (on the existing
joints if neecassary).

If yo want an impermeable floor finish (plastic), the only sure way is to
take the floor screed up &put is a DPM.
A lot of work and expense.

On 25/08/2014 12:06, cojack wrote:
Hi,

1905 house with 30's kitchen extension.
How best to put a new 'plastic ie. Amtico tiles on it?

I put Amtico tiles down on the quarry tiles (with a levelling compound)
25 years ago with a bituminous adhesive which seems to have held.
More laid 9 years ago with a contact adhesive have not and some have
blistered.
So quarry tiles by themselves do not seem to provide
a damp course, what is under the quarry tiles is anyone's guess.

You can download information on preparation and adhesives from their web
site:

http://www.amtico.com/technical-info


--
Colin Bignell

On Monday, August 25, 2014 12:06:31 PM UTC+1, cojack wrote:

Hi,
1905 house with 30's kitchen extension.
How best to put a new 'plastic ie. Amtico tiles on it?
I put Amtico tiles down on the quarry tiles (with a levelling compound)
25 years ago with a bituminous adhesive which seems to have held.
More laid 9 years ago with a contact adhesive have not and some have
blistered.
So quarry tiles by themselves do not seem to provide
a damp course, what is under the quarry tiles is anyone's guess.
Regards
Colin

Bitumen doesnt care how wet it gets, few other adhesives truly dont care. Also it can go onto old bitumen just fine. And its cheap. If you have no dpc and want a dry floor, I'd look at vinyl on a roll, not tiles, and use bitumen.


NT